Established in 1918, Guardian Service Industries is a family-owned Janitorial, Security and Engineering & Operations staffing corporation with over 1,000 clients and maintaining over 110 million square feet throughout the Northeast inclusive of commercial buildings, government buildings, residential communities, commercial facilities, schools, industrial facilities, transportation hubs, and retail outlets. We specialize in providing subject matter expertise, management and staffing in all areas of facility maintenance, inclusive of Janitorial Services, Security Services, Engineering & Operations, Pest Control, Lighting and Electric, Window Cleaning, Concierge/Front Desk Ambassador, and Marble, Metal and Wood Restoration. Guardian Service Industries, Your Facility Solution Provider.